Zodiac Hi-E2 Limestone Gravel || R0306200 Pentair IntelliChlor IC40 Cell P&A The water management system lies

The water management system lies along the bottom of the base assembly connected by a few rubber hoses and hose clamps

Black | SKU 236744

Automatic shut-off feature

The Pentair Clean & Clear Plus Cartridge Filter 420 (SKU EC‑160301) is designed for high‑performance residential in‑ground pools where clarity

Check the condition of the valve lid and internal actuator cam during housing replacement—if you see cracked lid seals or worn gear teeth

Zodiac Hi-E2 Limestone Gravel || R0306200 Pentair IntelliChlor IC40 Cell P&A The water management system liesZodiac Hi E2 Limestone Gravel R0306200 This is a Zodiac R0306200 Limestone Gravel for Hi E2 Heaters. The limestone acts as a condensate neutralizer.